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Finding the Fourth Proportional to 73,897.36, 110,845.28 and 18,493.36

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Solution

The fourth proportional to 73,897.36, 110,845.28 and 18,493.36 is: 27,739.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,897.36 : 110,845.28 = 18,493.36 : x
  2. Step 2: Convert to fraction form
    73,897.36/110,845.28 = 18,493.36/x
  3. Step 3: Cross multiply
    73,897.36x = 110,845.28 × 18,493.36
  4. Step 4: Simplify right side
    73,897.36x = 2,049,901,667.34
  5. Step 5: Solve for x
    x = 2,049,901,667.34/73,897.36
  6. Step 6: Final answer
    x = 27,739.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.